Filter for tobacco smoking pipes



July 23, 1935.

M. L. SMITH FILTER FOR TOBACCO SMOKING PIPES Filed July 14, 1953 T W M W [WM/MA 8 H M J 9 4 Patented July 23, 1935 UNITED STATES PATENT OFFICE 11 Claim.

This invention relates to improvements in pipes, and\has for its object to provide, in connection I ,with a smoking pipe, 2, filter for removing moisture from. the smoke and diverting it to one side of the path in which the smoke is traveling.

It is an object of this invention to provide, in connection with a smoking pipe,. a screen that will atomize the moisture of the smoke and divert it to one side of the path in which the smoke is traveling.

It is also an object of this invention to provide a smoking pipe composed of a stem section having a cavity therein, a bowl section removably mounted on the stem section and having a frustro conical passageway leading into the cavity.

These and other advantages will appearfrom the following description taken in comiection with the drawing.

Referring to thedrawing:

Figure 1 is a vertical longitudinal section through the pipe bowl and the stem.

Figure 2 is a section on the line 2-2 of Figure 1.

, Figure 3 is a top plan view of the screen with a part of the upper wire netting broken away to show the fine particles of charcoal which form the body of the screen.

Figure 4 is a vertical section through the filter or screen.

Figure 1 shows in vertical, longitudinal section the assembled parts of the pipe, in which there is a bowl section I, threaded upon a stem section 2 which has therein a cavity 3. The threaded connection between the bowl section and the stem section is indicated by the numeral ll. On the stem section and around the cavity is a bench or shoulder 4, located immediately above the rounded corners 5 in the bottom of the cavity.

Extending into the cavity through the bowl section is a hole 6, which is frustro conical and forms a restricted passageway for the smoke from the bowl into the cavity. Because of the frustro conical nature of the hole the smoke, air and the moisture contained therein may spread out and come in contact with all parts of the screen supported on the shoulder beneath the hole. This screen is composed of four parts, an upper coneshaped fine mesh wire netting I, a bottom 8 of wire netting united at its edges to the edges of the cone-shaped netting to form a shoulder 9, and an upwardly extending skirt part l3 of wire netting. These-parts may be united by soldering or sweating.

The united parts of these nettings form the shoulder 9 for supporting the screen as a whole upon the shoulder 4. Between the parts I and 8 is a filter material ID of finely out particles of charcoal, forming the fourth part of the screen. The position of the parts is clearly shown in Figures 1, 2 and 4.

It will be observed that the apex of the cone part of the screen is immediately beneath the hole 6 so that as soon as the smoke leaves the bowl of the pipe it comes in contact with the screen, which serves to atomize the moisture in the smoke and divert it laterally from the main path of the smoke and the air. The diverted and condensed moisture is collected around the round corners formed by the part 1 and the skirt [3 so that the smoke can pass through the opening 6 of the stem, and out through the hole or passage- 15 way l2 leading to the end of the stem free from moisture. The bottom of the screen or filter is spaced from the bottom of the cavity 3 to form a clearance M for receiving the smoke from the screen.

The screen not only serves to remove the moisture from the smoke but tends to cool the smoke and add pleasure to the smoking qualities of the pipe. Should any part of the moisture not be diverted by the cone-shaped top of the screen it 25 will be caught in the body and be trapped therein so that when the screen becomes thoroughly saturated it maybe removed by simply screwing off the bowl part from the stem part and be replaced by a. fresh and unused screen.

It will be understood that I desire to comprehend' within my invention such modifications as come within the scope of my claims and my invention.

It will be understood that by powdered char- 35 coal I include various types of charcoal, including finely cut particles of charcoal. In other words, varying degrees of fineness of the charcoal may be employed depending upon the conditions in which it is used.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A smoking pipe consisting of a stem section having a cavity therein, a bowl section attached 45 to the "stem section and having a frustro conical hole leading into the cavity in the stem section, and a screen in the cavity beneath the hole, said screen having an upper cone-shaped surface.

2. A smoking pipe consisting of a stem section 50 having a, cavity therein, a bowl section attached to the stem section and having a frustro conical hole leading into the cavity in the stem section, and a screen in the cavity beneath the hole, said screen comprising an upper cone-shaped wire netting member, a lower wire netting member and a filler oi fine charcoal between said members.

3. A smoking pipe consisting of a stem section having a cavity therein, a bowl section attached to the stem section and having a frustro conical hole leading into the cavity in the stem section, and a screen in the cavity beneath the hole, said screen comprising an upper cone-shaped wire netting member, a lower wire netting member.

and a filler of-fine charcoal between said members.

4. In a smoking pipe, a stem section having a cavity therein, a shoulder around the cavity near its bottom, and a screen in the cavity supported on the shoulder, said screen consisting of an upper cone-shaped fine mesh wire part, a bottom of wire netting and a filler of charcoal.

5. In a smoking pipe, a stem section having a cavity therein, a shoulder around the cavity near its bottom, and a screen in the cavity supported on the shoulder, said screen consisting of two pieces of wire netting united at their edges to form a shoulder to engage the first-named shoulder, and a filler of charcoal between the pieces of wire netting.

6. In a smoking pipe, a stem section having a cavity therein, a shoulder around the cavity, and a screen in the cavity supported on the shoulder, said screen consisting of two pieces of wire netting united at their edges to form a shoulder to engage the first-named shoulder, the upper one of said pieces of netting being cone-shaped, and a filler of charcoal between the pieces of wire netting.

'7. In a smoking pipe, a stem section having a cavity therein, a. bowl section having a. Irustro conical hole leading into the cavity, a shoulder on the stem section around the cavity, and a screen supported in the cavity on the shoulder, the upper surface of said screen being cone-shaped and having its apex adjacent the hole.

8. In a smoking pipe, a stem section having a cavity therein, a bowl section having a frustro conical hole leading into the cavity, a shoulder on the stem section around the cavity, and a screen supported in the cavity on the shoulder, said screen including therein a mass of powdered charcoal having an upper cone-shaped surface with its apex beneath the hole.

9. In a smoking pipe, a stem section having a cavity therein, a bowl section having a frusto conical hole leading into the cavity, a shoulder on the stem section around the cavity, and a screen supported in the cavity on the shoulder, said screen comprising a, pair of pieces oi wire netting united at their edges to form a shoulder to engage the stem shoulder, and powdered charcoal between the pieces of wire netting.

10. In a smoking pipe, a stem section having a cavity therein, a bowl section threaded on the stem section and having a hole leading into the cavity, a shoulder on the stem section around the cavity, and a screen supported in the cavity on the shoulder, said screen comprising an upper cone-shaped piece of wire netting, a lower piece of wire netting united at its edges to the edges of the cone-shaped piece, and powdered charcoal between the pieces of netting.

11. In a. pipe, a screen therefor consisting of two pieces of wire netting united at their edges, a filler of charcoal between the pieces of netting, and a wire skirt around the pieces of netting and forming therewith a moisture trap.

MARTIN L. SMITH. 

